Rename 'fisher' to 'fishers_exact' in output.
Rename 'fisher' to 'fishers_exact' in output.

git-svn-id: 6391b798f55e3e4f5184bc6d113ebedc82009d5e@3774 1fbec0df-f6b4-4bca-857c-de90862b47bd

gotgenes/BiologicalProcessNetworks